What is CVE-2020-11264?

CVE-2020-11264 is a critical-severity vulnerability in Qualcomm Apq8053, classified under Improper Authentication. CVSS score: 9.1/10. Published 2021-09-08.

How severe is CVE-2020-11264?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Qualcomm Apq8053

CVE-2020-11264

Improper authentication of Non-EAPOL/WAPI plaintext frames during four-way handshake can lead to arbitrary network packet injection in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Vulnerability class: Broken Authentication

Published 2021-09-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.132 (96.2th percentile), scored 2026-09-28.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.132 · newest: 0.132 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-11264?: CVE-2020-11264 is a critical-severity vulnerability in Qualcomm Apq8053, classified under Improper Authentication. CVSS score: 9.1/10. Published 2021-09-08.
How severe is CVE-2020-11264?: Critical severity. CVSS v3 base score is 9.1 out of 10.